GAIL (India) Limited is India's leading natural gas company. It is involved in the exploration and production, processing, transmission, distribution and marketing of natural gas. It has set up 5,800 km of natural gas high pressure trunk pipelines across the country. It is an active partner in joint venture companies in Delhi, Mumbai, Hyderabad, Kanpur, Agra, Lucknow, Bhopal, and Pune for supplying Piped Natural Gas (PNG) to households